(20 U.S.C. 6301 et. seq.), as amended by this Act, from programs. authorized under the Elementary and Secondary Education Act. of 1965 (20 U.S.C. 6301 et seq.), as in effect on the day before. the date of enactment of this Act.
The efficacy of a vaccine is different from its effectiveness. It is dependent on several factors such as: 1  adherence to vaccine schedules. 2  the disease â some diseases have vaccines against them that perform better than for other diseases. 3  the strain of vaccine â some vaccine strains are more effective than others.
There are two types of vaccines, inactivated and live, and these present different indications after administration. Vaccinations are the act of administering the vaccine that produces immunity in the body against the organism. Immunization is the process by which one becomes protected from a disease. Vaccines cause immunization, and sometimes diseases can also trigger immunization after the individual recovers from the disease.